99838956673 has 2 divisors, whose sum is σ = 99838956674. Its totient is φ = 99838956672.

The previous prime is 99838956671. The next prime is 99838956683. The reversal of 99838956673 is 37665983899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54285738049 + 45553218624 = 232993^2 + 213432^2 .

It is a cyclic number.

It is not a de Polignac number, because 99838956673 - 2¹ = 99838956671 is a prime.

Together with 99838956671, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 99838956596 and 99838956605.

It is not a weakly prime, because it can be changed into another prime (99838956671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49919478336 + 49919478337.

It is an arithmetic number, because the mean of its divisors is an integer number (49919478337).

Almost surely, 2^99838956673 is an apocalyptic number.

It is an amenable number.

99838956673 is a deficient number, since it is larger than the sum of its proper divisors (1).

99838956673 is an equidigital number, since it uses as much as digits as its factorization.

99838956673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529079040, while the sum is 73.

The spelling of 99838956673 in words is "ninety-nine billion, eight hundred thirty-eight million, nine hundred fifty-six thousand, six hundred seventy-three".